Bluetooth Wireless Communication Kit for 2 Way Radios


This is a full-duplex Bluetooth voice communication kit for two-way radios. A wired headset connects with the biggest board (TSA5003). Another board, TSA5004, connects with the two-way radio. The smallest module is the wireless PTT button.

Bluetooth Wireless Communication Kit for 2-Way Radios

This is a full duplex Bluetooth voice communication kit for 2-way radios. A wired headset connects with the biggest board (TSA5003). Another board, TSA5004, connects with the 2-way radio. The smallest module is the wireless PTT button.

The TSA5004 module audio interface is a 4-pin 2.54mm pin space XH connector. The MIC pin is the microphone input, and SPK1 and SPK2 are the speakers’ output. The power input range is DC3.3V-6V. You need to connect the headset’s mic and speakers to the TSA5004.

MFB Button:

  • Long press 5 seconds turn TSA5004 ON/OFF.
  • Double-click into searching mode. It will auto-search Bluetooth Master device.

MFB Button:

  • Long press 5 seconds turn TSA5003 ON/OFF.
  • Double-click into searching mode. It will search Bluetooth slave devices.

How to use it?

  1. Connect your headset speaker/microphone to the TSA5003 board. Then, connect TSA5004 to the mobile radio and power all three modules.
  2. Keep your TSA5003 and TSA5004 within 5 meters.
  3. Turn on your TSA5004 module (press the MFB button for about 5 seconds). Please make sure no other Bluetooth slave devices are nearby (Bluetooth amplifier, Bluetooth headset, Bluetooth receiver, etc.).
  4. Turn on your TSA5003 Bluetooth transmitter, press the MFB button for about 5 seconds, and double-click the MFB button. The blue and red LED lights will fast-blink. Now, the transmitter is in pairing mode and will automatically search for the receiver device. Finish pairing and connecting.
  5. Double-click the MFB button on TSA5004.
  6. After connecting successfully, the blue LED on TSA5003 will stay on.
  7. Your voice can now be sent to the radio wirelessly. You can also receive voice from the radio.


  • Bluetooth v5.3
  • aptX, aptX-HD, SBC, and AAC
  • Bluetooth protocol: A2DP
  • Output power: ClassII
  • Effective transmission distance: 80-100m

Shipping list:

  • 1 x TSA5003 Master module
  • 1 x TSA5004 Slave module
  • 1 x PTT button module
  • 2 x Antenna
  • 1 x JST XH Jumper 2 Wire -2.54mm
  • 3 x JST XH Jumper 4 Wire -2.54mm
  • 1 x JST XH Jumper 5 Wire -2.54mm
  • 2 Mirco USB cables

Product Datasheet and Manual

If applicable, the Product Documentation such as Datasheet, Brochure, Reference Materials, CAD Design, STP Files, Manuals, and Tutorials will be available for download upon purchase from the My Account as needed. On the checkout page, please create an account to download product-related files upon purchase. You won’t be able to download otherwise.


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Founded in 2009, TinySine Electronics is a smart home and open source hardware provider, catering to hardware engineers, DIY enthusiasts and interactive designers. Our ever-growing product catalog includes over 700 components and widgets from sensors, robotic platforms, communication modules to smart home relay boards.

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Return Policy

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REFUND POLICY: Oz Robotics accepts refunds on a minimal basis unless there is a manufacturing defect. For electronic items, returns are only accepted on devices with serious and irreversible problems; meanwhile, the customer must apply for the returns within seven days of delivery. Before a refund acceptance, please include images or a video and any other proof of the defect. However, we abide by the exchange policy of our suppliers because we do not manufacture these products. For more info please visit Refund and Replacement Policy.

Other than our supplier's default policy, once a return is agreed upon, you can ship your defective item to the provided return address that you should receive from us first. Please ship the order in original packaging with all the accessories and additional parts. If the Required Parts are not sent back, they will be billed for or expected to be shipped later. And only once all items have arrived will our staff check the returned product for testing. Include in your package a signed letter stating the reason for your return, the original receipt, proof of defect, images, a video, etc. It will help us to speed up the process on your behalf.

The purchaser (customer/buyer) is responsible for all shipping costs when returning an item. However, upon receiving the returned order, we will assess the product. If it is determined that there is, in fact, a manufacturing defect, then we will refund the shipping costs as well as repair or replace or refund the full amount to the purchaser if the product is not fixable.

If you wish to return an unused product, please do so within seven days from the ship date for a refund on the purchase price minus shipping and handling. Refunds will be credited to the original credit card used for payment 24-48 HOURS after receiving the product back. We will charge a 80% of the total for restocking + PayPal or Stripe processing fees and the Return Shipping cost for unopened packages.

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Shipping costs

Region / Country State Postcode Cost
Any Any Any $25.00